This is an Ametek Vacuum Motor for your Eureka models CV1801K, CV1801L, CV1801M, and CV1804, 120 volt.
It has more than a 1/2" taper at the bottom (see additional picture).
It is suggested you replace the motor gasket part #MO512.
Protect your motors from dust and dirt by using a motor filter. This prolongs the life of your motor and is a must for all motors. See our part #MO553.
Uses motor brushes part #MO523.